Answer:
Musicals include every person's voice and their voices are incorporated in to one song that is trying to tell some form of a story. It wouldn't be a musical if there were one person right? So the "collaborative" part induces the fact that it is a musical with multiple roles for singing and acting. I hope this will help you, this answer came truly from me. Thank you.
Mixtures of pigment and clay --slip— they created (check the passage you read or wtv it should be sum like this) and for the derive question
Answer:
Red denotes excitement and intensity, Pink stands for feelings of tenderness, Yellow symbolizes joy, happiness, optimism, Blue reflects peace, tranquility.